Stinger 40cc Twin Gas Engine
Couldn't load pickup availability
RCGF Stinger 40cc Twin Gas Engine
The RCGF Stinger 40cc Twin is a twin-cylinder, two-stroke gasoline engine for compatible RC airplanes. Its compact layout makes it an option for sport, scale, and aerobatic aircraft with sufficient room for both cylinders and mufflers.
The engine combines a Walbro carburetor with electronic ignition and automatic timing advance. Its included accessories provide the main engine components needed to begin planning your aircraft installation.
🚀 Target Applications:
- RC sport, scale, and aerobatic aircraft designed for a compatible 40cc gasoline engine
- Installations with adequate cowl width, exhaust clearance, and cooling airflow for a twin-cylinder engine
Key Features
- Twin-Cylinder Configuration: Compact layout for compatible gasoline-powered RC aircraft.
- Walbro Carburetor: Adjustable fuel delivery for setup and tuning.
- Electronic Ignition: Stinger DC-CDI system with automatic timing advance.
- Air Cooling: Finned cylinders require adequate airflow inside the cowling.
- Included Engine Accessories: Ignition, mufflers, spark plugs, and installation hardware.
📋 RCGF Stinger 40cc Twin Technical Specifications
| Engine Type | Twin-cylinder, two-stroke gasoline airplane engine |
|---|---|
| Total Displacement | 2.44 cu in (40cc) |
| Bore × Stroke | 1.26 × 1.02 in (32 × 26 mm) |
| Rated Maximum Output | 4.6 hp at 8,600 RPM |
| Operating Speed Range | 1,500–8,600 RPM |
| Listed Idle Speed | 1,500 RPM |
| Carburetor | Walbro |
| Ignition | Stinger DC-CDI electronic ignition with automatic timing advance |
| Ignition Supply Voltage | 7.4–14V; confirm supplied module rating |
| Ignition Power Restriction | Do not use a BEC, iBEC, or uBEC |
| Fuel Mixture | 40:1 gasoline to high-quality fully synthetic two-stroke oil |
| Cooling | Air cooled |
| Recommended Propellers | 19 × 8, 19 × 10, 20 × 8, or 20 × 10 in |
| Suggested Break-In Propeller | 19 × 8 in, two-blade |
| Engine Weight | 2.32 lb (1,052 g) |
| Combined Muffler Weight | 4.44 oz (126 g), both mufflers |
| Ignition Module Weight | 5.1 oz (145 g) |
| Combined Listed Weight | 2.92 lb (1,323 g), engine, mufflers, and ignition |
| Gator RC SKU | STNG-40-TWIN |
📦 What's Included:
- RCGF Stinger 40cc Twin engine
- Electronic CDI ignition module
- Two mufflers
- Spark plugs
- Gaskets and bolts
- Throttle arm extension
- Instruction manual
Note: Gasoline, fully synthetic two-stroke oil, a compatible ignition battery, an appropriate propeller, and gasoline-compatible fuel system components are required separately. Additional mounting components may be needed for your installation.
🛠 Aircraft Compatibility & Setup
Select an aircraft whose manufacturer recommends a compatible 40cc gasoline engine. Before installation, confirm engine width, mounting dimensions, cowl clearance, muffler clearance, propeller clearance, and aircraft balance. Displacement alone does not establish compatibility.
Follow the supplied RCGF manual for installation and engine adjustment. When ordering replacement spark plugs, match the plugs supplied with your engine and confirm thread size and ignition-cap compatibility.
Replacement parts: Browse our RCGF Stinger 40cc Engine Parts and confirm compatibility with your twin-cylinder engine before ordering.
The Gator RC Advantage: Shop RCGF Stinger engines, replacement parts, propellers, and installation accessories from Gator RC in Algonquin, Illinois. Contact us for help selecting components for your aircraft.
